Self-service refrigerated showcase



March 17, 1952.I

Filed July 1, 1950 K. A. WEBER SELF-SERVICEREFRIGERATED SHOWCASE 5 Sheets-Sheet 1 M INVENTOR.

BY 0f. M05/ March 17, 1953 K A. WEBER 2,631y438 SELF-SERVICE REFRIGERATED SHOWCASE Filed July l, 1950 5 Sheets-Sheet 2 .63 66 JZ fz@ 74 6 7Z 10 116 70 az f/z 64 99 99 u ggg 6 a4 ,f j 11 1261@ ffm 'P- 'v"||'54 106 J5 ZaA im v 5458 gz 50 Il 4Z Z p4@ 44- 40' V46 10 X MH fa l w1* f4 9 y .www im uw ff w y H f5@ Mdm/wrox.

March 17, 1953 f K. A. wl-:BER` I 2,631,438

l SELF-SERVICE REFRIGERATED SHOWCASE Filed July 1, 195o 5 Sheets-Sheet 3 156 I 7a 143'* 1 16a 4 55,1% 'J6/I 166 'J 163 Hu 172 HHHIIII" :at O u f w. l J5Z /44 HUHHNHQ. LM* ya.;

|Il I 5011i' INIIWM. Il lll Patented Mar. 17, a1953 UNITED .STATES y RQS'I'EI'SITy OFFICE 'SELF SERVICE REFRIGEItATED` SHOWCASE Karl A. Weber, Brentwood `Height-s, Calif.,as signor to Weber Showcasede Fixture Go., Inc., 'Los Angeles, .'Calif., a corporation of Delaware ApplicationLJulytl, 1950, Serial No. 171,619

`16 Claims.

This invention relates to .a:.new,and improved self-service refrigerated-showcase.

jIt is an object Yof this invention tozprovide a displaycase whereinffoodof various types-may be stored in anfopen :bin andgcool. refrigerated airzcirculated overfsaid foodfto prevent ,deterioration thereof.

It is an object fof :.thisfinvention toprovide -a display case in :which fthe lower :portions :of Ythe display;bin.- are readily accessible. vIn-the :usual open typedisplay.zcasegthe food is placed in .the display. .binby` inserting .it vatthetop of z the bin. It has .been found :that: the vcustomers :generally remove 4.the top. several layers of ffood, but that the.food:.stored.at thellower portion of fthe bin is seldomzremoved. 'It is ithereforet'necessary to rotateand shifts. about theifood'so that the-portion whichl is stored..-at lthe bottom ofthe birrdoes not spoil.

' Itv issa further object Aof thisi invention to vprovidek means whereby ,theldisplay binis accessible froinltherrear Vof the; case for changing and shifting' the articles yon display. l

It 1 is still a f further cbj ect Vofl thissl invention to cutoff the circulation of air :through thedisplay binduring the period` during vwhich the'.'articles on display are beingfshifted Vabout v.or .changed to minimize fthe circulationof warm yair-from: the atmosphere through the-'case at :this time.

Other objects andradvantages o'f this device will beapparent A`from the following` description.

In what vis now considered the preferred velnboldirnent, `there is provided a housing :with an open. display bin at the-upper extremity. Means are provided tov-circulate air, and refrigerating meansfare vprovided :to refrigerate the circulated air. air .supply duct directs'airifrom therefrigerating means :to the.rear'portionA of the display bin. -'Closure means 4are provided kat the rear of the'storageibin'to permit access to said bin fand to AI terminate circulation of air in the display bin whensaidclosure means-are opened. A return air! duct-'is .provided atthe front'ofthe display bin *to the air circulating means toinsure a continuous circlationof cool refrigerated air.

lReferring to the drawings:

'Figure vl -isza front elevation of 'a singlefdeck open y'type `refrigeratedy showcase embodying fthis invention;

Figure-:2 is' a rear elevationy ofthe showcase;

Figure :3' is a'ssectional view Vtaken along vthe line v---Ci .of Figure l;

-f.Figu1'e 4 is a 'fragmentary sectional View illustratngthe hinged doorfand y Figure 5 isa side elevation of .a multiplev deck type refrigerated-'showcaseembodying a modication of this invention.

A housing may be provided by front wallv I0, abase l2, a rear wall M and yside walls lan'd I8. These walls maybe constructed in any suitable manner, it being preferred that metalstripping bel secured tothe exterior of these wallstto retain the insulating material 2D Within `these walls to maintain a low temperature :inside the showcase. A suitable .foundation A22` is provided to Ysupport-the showcase. The lower portion 24 of the showcase is accessible through .the-sliding doors v26, which maybe groovedfasat `28 to be :supported by the runners .30, thuspermitting thedoors Vto-slide open.

-Theupper portionof thehousing provides-a display bin32. The tfloor 34 of thedisplaybin Saissuitably'mountedontheside walls I6 and ES. The mounting mayfbe. in the form .ofpbrackets 36 .and '38 `to whichloor i311 is suitablyxattached. H,fi-blower orffan -40 vismountedzin l*a blower vhousingyvhich is formed-bythef-wall 42 and the Wall lltwhich arev suitablygmountedin the housing, 1 thus 'providing a chamberbetween `the oor 'Siofthe display bin `'3-2 and the `Walls 4.2- and d4, Anopeningfor thefadmissioniof .air tothe-blower so is providedin thischambergatw'.

vRefrigerating means, ,suchv as .refrigerating coils, or `.the/like, is provided in thevfront "portion of the blowerchamberfas'at 48 iand -an"air duct bdfrcmzzthe front-of the refrigerating means may ber'formed bythe floor .3 of thedisplay bin 32 andfthezduct wall'52, :Whichformsfacontnuation of. vthe wall'dd.. Thisduct wall '.52Lis supported ina groove vfill ofthe rear Iwallv I4 and may' bexattached vto the yside walls IS `and :I8 or otherwise.y suitably mountedin the housing.

An air'duct Wall .iii Which, in this embodiment, forms acoverplateforthe floor 340i thedisplay bin l32,-continues.the airduct'and is curved as .att until parallel to and formingan air passage with rear wall FM. directing theflow of air from the blower Gt'throughthefair duct 50 and upwardly parallelitto,therearwall i4. '.Closure means inthe form of 'hinged doors 160 vare secured tothe rear .Wall lll by the '.hinges E2, permitting the doors 'to be in the closed position as .seen inFigure 3 or in the open positionfas seen in Figure 4. When a hinged door is in the openposition it is apparent ythatthelower portion of the .display bin 32isreadily accessible.

A -handle 5ft `may be attached to vthe door :to

facilitate vopening Aand closing vof said door.

A :baille 1 66 :is :attached to?! the hinged door in* any suitable fashion, herein shown as welded to the door and supported at its upper extremity by a bracket 68. This baiiie 66 is preferably curved to direct the iow of air through the air duct into the display bin 32 at an acute angle with respect to the iloor 34 of the display bin. Plates 'IB and 'I2 are suitably mounted on 'the hinged door 66, to form a continuation of the air duct and the plate '|2 projects upwardly parallel to the door G, terminating at the opening 14, which admits air from the air duct into the Idisplay bin 32. A restricted throat 16 may be provided Aby the plates '|8 and 8D, which are attached to the air duct Wall 55 and the rear wall I4, respectively. Similarly, a restricted throat 82 may be provided by an extension 84 of the plate 1B and by the member 86 which is suitably mounted upon plate 12. The restricted throats 16 and 82 serve to seal the opening between the plate 'I2 and the duct wall 56 when the door is closed and also function to prevent articles falling down the air yduct 50.

When the hinged door, or doors, as the case may be, is opened the refrigerated air will continue to now through air duct 5|? and between rear wall I4 and air duct wall 56. The air is then discharged vertically and functions to seal off the cool air in the display bin 32 from the Warm air outside the showcase.

A sealing member 88 may be provided and is retained between the member 86 and the plate |2 to prevent air escaping between the restricted throats 82 and I6 into the display bin 32, said sealing member 88 preferably being constructed of a resilient material. Similarly, a sealing member 9E) is mounted on plate 80 being retained between the plate 80 and the hinged door SB to prevent leakage of air between said hinged door and the rear wall I4. A corresponding sealing member 92 is provided in the upper extremity 94 of the rear wall I4 to prevent air escaping between the upper extremity 94 of the rear wall I4 and the hinged door 6D. Sealing members 96 and S3 are retained in the hinged door and the upper extremity 94 of the rear wall I4, respectively, to bear against one another when the hinged door is closed to prevent escape of air. The sealing members 88, 9-2, 96 and 98 are all preferably of a resilient material to facilitate their sealing functions and to permit the silent closing of the hinged door 63.

The refrigerated air, after passing through the air duct 5|) and out the opening 14, passes over and around the food herein represented by the boxes 99 which may be stored in the display bin 32. Mounted in the display bin 32 is a rack |92, which preferably is constructed of a plurality of bars which are welded to the brackets |32 and |04. A bracket |06 is provided to support the front end of the rack |08 while the rear end of the rack IBI! may rest upon the bracket 38 so that the rack is readily removable. The plurality of pipes forming the rack are preferably spaced from one another a suitable distance to permit drainage of any excess moisture which may collect in the display bin 32.

After the refrigerated air has passed through the display bin 32, it passes over the baffle |68 which is retained in a bracket IIE?. The bracket III] is in turn mounted on the bracket 36 and may be attached to the side walls I 5 and I8. Spaced from the baiiie |68 a suitable distance to provide a return air passage ||2 is a front baffle 4. It is, of course, obvious that the baiiies |58 and I I4 may be made of glass or other transparent material to permit the customer standing in front of the case to View the articles stored therein. It is therefore preferred to construct the front baie of spaced glass plates I|6 and H8, which are mounted in suitable grooves in transverse support member |26 which in turn is mounted in a groove in the longitudinal member |22, which is mounted upon the front wall I0 of the housing and suitably attached to side walls I6 and I8.

The upper extremities of the plates ||6 and IIB are retained in suitable grooves in the upper railing |24 which acts to space the plates apart as well as to support them as is well-known to those skilled in the art.

Provided in the lower portion of the return lair passage ||2 is a screen |26 which is an extension of the bracket 35, the upper extremity of the bracket 36 being fastened to the longitudinal member |22. The screen |25 functions to prevent any objects from the display bin falling into the lower portion 24 of the showcase. The air passes through the screen |26, between the front wall I0, of the bracket 36 and the blower chamber wall 42, which is spaced from the wall I0 to provide an air passage. The vair is then drawn by the fan or blower 413 through the opening 4S and is recirculated.

A drain |28 of any conventional construction may be provided in the base I2 of the housing to drain off any excess moisture which may collect in the lower portion 2li of the housing.

Referring now to Figure 5 wherein a modication of this invention is illustrated embodied in a multiple deck case and wherein like parts having the same function are given the same designation with the addition of the exponent 41.

In this embodiment the housing is similar to the housing in the principal embodiment with the exception that the rear wall I4a extends substantially above the front wall Ict. A chamber having an air inlet opening 46a is provided to house the blower 45a and the refrigerating means 48a. The closure means in this embodiment comprises a drawer generally designated |39 which is slidably retained in the rear wall I 4a. The floor |32 of the drawer |30 holds the food |34. on display and is retained in the display bin |36 by the supports |33 which are mounted on the floor |49 of the display bin |35.

At the rear of the drawer I3!! a vertical baffle |42 is mounted spaced a suitable distance from the closure portion |44 of the drawer to form an air passage I4|i between the bafiie and the closure portion. This air passage is in communication with the air duct 50a so that refrigerated Aair passes upwardly through said air passage.

When this invention is embodied in a multiple deck showcase as illustrated in Figure 5, the air passage |45 is divided into two channels |48 and |50 by a partition or baflie |52 suitably positioned between baiiie |42 and the closure portion |44 of drawer ISB. The vertical baiiie |42 at its upper extremity may be deflected away from the closure portion while the upper extremity of baflie |52 is bent to a substantially horizontal position to provide an opening |54 between said baiiles to divert that portion of air entering channel |52 from the air duct 59a into the lower display bin |36.

The air then circulates through the lower display bin |36 and down return air passage I |2a formed between rear bafiie |0866 and front baiile I Ma. The air then enters the chamber beneath the lower display bin and is drawn through 2,631 ,nos

5 opening .afbythe blower Maand iszrecircuiated; Ihejsrefrigeratediair passing through rchannel M8 :passesxbeyondolosure:portion lili of'gthe drawer I T39 fandvverticallyralong y'the':rear'wall 'f l 4a' until: it reaches' `the upper: portioni la-'of the; real' wall. 1.A=' eurvedibaiile 0rdeecto'r 1.561 isa'mounted I then passes through duct |12 :formed between the ioor'of :display bin lfand'duct wall I'I which is suitably'mounted in theh-ousing. The ew of air Visdireotedvertically 'downward-by channelwall H6; which'is positioned-between the floor-fof .display loin Vl'ifand baule" lrto'form a continuation-:ofair channel .l 4-8.

The lair thenpassesthrough .the air return duct L82'which isapositionediratvthe opposite endfof the casenfromrtheziair'passage Mt s and opens Aat itsupperf'extremity.into the air duct H2. .This airreturn-duct 1:82;proj:ectsbelowthe lower display bin: i3d .an'dair passes :outthev lower end of this ductiandzis drawnbyblower :Mld through opening 'liiai and' is rrecirculated.

`It .isf"apparentithat when :the :drawer I3@ 'is opened the lo'or'l'lllo'locks oi air duct 5ta thus preventing'icirculation:ofairithrongh the `display bins. -Sinee the airfin'thedisplay .bins-is already cold'it" iseapparentfth'at little forrnowarrn air will enter the 'case'durng the short interval the drawer-isopened.

It is l'also 'apparent that rth-is 'modification `is easily 'adaptable to .n single Vvdeck case by :omitting :ba-iiie' -2 t52andproviding a baie "to fdivert air the'principal -embo diment.

It is A"desira'gblef toprovidev at the lower extremity is pivotally mountedtobaiile '52 as Vby a hinge [86. This .lower "section i315 of baiie 52 may then be mivoted' aboutfa horizontalaX-i-s'f'to divert a Alarger portion oftherefrigerated'air intoi'either the upper or lower display bin. That -is'when'th'is baffle-is A'pivoted'f rearwardly,v a` greater portion of the-refrigerated airwill bedeflected` into the lower rdisplay fbin |36' through f air channel T58, -resulting in 'a .lower temperature`A in: this bin" than inthe upperdisplay bin'l. "In thisrnanner the amount''oiareirigeratedair.l and thus the 'temperature infthetwo 'display'binsfcan be controlled.

The" operation of the principal. embodiment' is as follows: :Air isidrawnain through the opening 46 -toV the 'blowen-Mirand ist forcedfthrough' the refrigerated coilsv 1584 intot-heiair :duct l. Theair is thendivertedupwardlyiby the rear wall M1 and passes throught the restricteduthroat 'lS.' JWhen the hingeddoor isin the closedposition, asillusl` f trated-inzFigureB, theair passesthrough therestrieted throat' vand `is deected 'bythe haine-d6 spilling downwardly into the display bin 32. The air afterfpassingthroughathegdisplay.,bin ilpasses overthe baiilelifand isf-deflected downward-1y through .the screens 1:25 fand :between 'the fbraeket 3 5 rand front .wall i t@ :andi is drawn v:througlfi :the opening l2li v.to-@the lblower to be recirculated When itisifdesiredftozwithdraw orfplace food in thedisplayxbintkthe:door-Gilisopened-bymeans of #handle 'Sti-'to .therposition shown jin, Figure '4. When-f the vvdoor is inthisipositionthe `refrigerated air passes through duch-50 and .isdiverted'upwardly by the rear wall# Hl. ...The-cool refrigerated air-then owsiupwardly, sealing oi the coolair in; hin 32 fromA thel warm air-v ,outside of the showcase, formingan eiectivesealor curtain between coldV air in the'bin and-warm airoutside the bin.

The-operation of themodiicationisrmuch the saine.- Airipasses `from :duct 5mt into channels 514:@ :and i565, passes .through-.thedisplay binsand to :returnj ducts vi -Za and: HB2, andis reoirculated as :heretofore .has a-been described. When. vthe drawer ISilis opened .the circulation oiai-r inzthe display ,'bin =is r-terxninatsfd by Athe door of fthe drawer "closing the xduct `50a.

While-the-above description isof the-preferred embodiment yof this .inventionfit is yto be understood th-atvariousfchangesiin the size,shape and location of fthe :component :parts may be` varied without Ideparting ffrorn the scope vof this `invention or the appendedy claims.

1. :A self-#service- :refrigerated showcase -com prising: a'housing fan open displayzbin-'disposed in the upper portion of said housing, :blower means disposed in .said housing, refrigerating meanedisposed: in-.said.housing,- so'that air'moved by said lilewerrmeans passesvthrough Asaid-refrigeratingfmeans, an. ain ductfdirecting airsfrom sa-idblower'. tothe rear ofsa-id displaylbinpafdoor suitablymounted said vhousing adjacent -the re ar'. ofssaid fdisplay bin which when-*in the closed position,.orinsvapart-.o` said air duct, and an -ar passage-for ,directing air from the: front'of .said d' ay 1 bin to said f blower 4Vmeans.

5'.. -A :self-service .refrigeratedshowcase rhcornprising: a'housing:an-fopenzd-isplay bin disposed Vin the upper portion of said housing, blower means disposed 'in-.said housing; .-refrigerating means disposed; invsadJ housing so that air moved by .said blower -rneans passes through Vsaid refrigerating -a door suitably mounted in 1, said housingfadjacentthe rearoiv saiddisplaybin,

duct. directing.. air` from said blower Vtothe rear. ofV saidy displaj,rj bin, tadoaiilev spaced fromfsaid door which-cooperates with said door to 'form an extensionoi air duct,- abaiiie disposed'v abovey said-.continuation oi`- saidv air duct .todivertair from said.r blower. means-.intosaid display bin,v and an. airpassage'fromthetirontoftsaid display'l bin.

to said blower means.

.3. .A A.selfservice refrigerated .showcase comprising: walls dening .,ahousing, an open odisplay bin disposed vinutile upper portion lof `said housing,.means .for -circulatingA air, an air i duct frem-saidfmeans to `the':reargof saiddisplaydoiny and :a1-door-iadjacent'rthe rear of` said "display bin-which .formsa part :foi said `air vduct.

.4. :A 1 self fservioerefrigerated .showcase comprising: walls deningfa fhousing, -ian Fopen 'displayfbin disposed inv the zupper f portion of 'said housing, means :for circulating. air, vangair rduct adoor .adjacent ,thefrrear :of 4xsaid^display "bin, andf af-,bailie .spaced :ironie said :door-which in ;cooperation with said door forms ta "continuation of; -sa-id air iduct.

-`5. .yA-.g iselfeservioe '-refrigerated *showcase scum 1 prising: walls defining a housing, an open display bin disposed in the upper portion of said housing, means for circulating air, an air duct from said means to the rear of said display bin, a door adjacent the rear of said display bin, a baille spaced from said door which in cooperation with said door forms a continuation of said air duct,4 and a baille on said door positioned above said continuation of said air duct to divert air into said display bin.

6. A self-service refrigerated showcase comprising: a housing, an open display bin disposed in said housing, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower passes through said refrigerating means, an air duct directing air from said blower to the rear of said display bin, closure means mounted in the housing adjacent the rear of said display bin which when in the closed position forms a part of said air duct and when in the open position terminates air circulation to said display bin, and an air passage for directing air from the front of said display bin to said blower means.

7. A self-service refrigerated showcase comprising: walls dening a housing, an open display bin disposed in said housing, means for circulating air, an air duct from said means to the rear of said display bin, closure means adjacent the rear of said display bin which forms a part of said air duct when in the closed position.

8. A self-service refrigerated showcase comprising: a housing, an open display bin disposed in said housing, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower passes through said refrigerating means, an air duct directing air from said blower to the rear of said display bin, closure means mounted in the housing adjacent the rear of said display bin, said means including a bale to divert air into said display bin, and an air passage for directing air from the front of said display bin to said blower means.

9. A self-service refrigerated showcase comprising: a housing, an open display bin disposed in the upper portion of said housing, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower passes through said refrigerating means, an air duct directing air from said blower to the rear of said display bin, a drawer provided with an opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said display bin to form a continuation of said air duct and admit air to said display bin.

10; A self-service refrigerated showcase comprising: a housing, an open display bin disposed in the upper portion of said housing, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower passes through said refrigerating means, an air duct directing air from said blower to the rear of said display bin, a drawer provided with an opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said display bin to admit refrigerated air into said drawer,

a bafe spaced from the rear of said drawer tov form a continuation of said air duct and admit air to said display bin.

11. A self-service refrigerated showcase com-V prising: a housing, an open display bin disposed in the upper portion of said housing, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower passes through said refrigerating means, an air duct directing air from said blower to the rear of said display bin, a drawer provided with an opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said display bin to admit refrigerated 'air into said drawer, a baille spaced from the rear of said drawer to form a continuation of said air duct and admit air to said display bin, and a baille on the rear of said drawer above said continuation of said air duct to divert air into said display bin.

12. A multiple shelf self-service refrigerated display case comprising: a housing, a plurality of open display bins positioned one above the other, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower means passes through said refrigerating means, an air duct directing air from said blower to the rear of the lower display bin, a drawer provided with an opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said lower display bin to admit refrigerated air into said drawer, means for diverting a portion of the refrigerated air passing through said opening into said lower display bin, means for directing a portion of refrigerated air into the remaining display bins.

13. A multiple shelf self-service refrigerated display case comprising: a housing, a plurality of open display bins positioned one above the other, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower means passes through said refrigerating means, an air duct directing air from said blower to the rear of the lower display bin, a drawer provided with in opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said lower display bin to admit refrigerated air into said drawer, a vertical baffle spaced from the rear of said drawer which cooperates with said door to form a continuation of said air duct, a bale to divert a portion of refrigerated air into said lower display bin, means for directing a portion of refrigerated air into the remaining display bins.

14. A multiple shelf self-service refrigerated display case comprising: a housing, a plurality of open display bins positioned one above the other, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower means passes through said refrigerating means, an air duct directing air from said blower to the rear of the lower display bin, a drawer provided with an opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said lower display bin to admit refrigerated air into said drawer; a vertical baiiie spaced from the rear of said drawer which cooperates with said door to form a continuation of said air duct, a partition to divide said continuation of said air duct into two air channels, a baie to divert flow from one of said channels into the lower display bin, means to direct a portion of refrigerated air from the other of said air channels into the remaining display bins.

15. A multiple shelf self-service refrigerated display case comprising: a housing, a pair of open display bins positioned one above the other, blower means disposed in said housing, refrigerating means disposed in said housing so that air moved by said blower means passes through said refrigerating means, an air duct directing air from said blower to the rear of the lower display bin, a drawer provided with an opening in its ibase which cooperates with said air duct when said drawer is inserted through said housing into said lower display bin to admit refrigerated air into said drawer, a vertical bafiie spaced from the rear of said drawer which cooperates with said door to form a continuation f said air duct, a partition between said rear of said drawer and said vertical baiile dividing said air duct into two air channels, one ofsaid air channels directing a portion of the refrigerated air to the lower display bin and the other channel directing air to the upper display bin, a baille pivotally mounted to said partition to control the amount of air directed into each of said display bins.

16. A multiple shelf self-service refrigerated display case comprising: a housing, a plurality of open display bins positioned one above the other, ,blower means disposed in said housing, refrigerating means disposed in said housing, so that air moved by said blower means passes through said refrigerating means, an air duct directing air from said blower to the rear of the lower display bin, a drawer provided with an opening in its base which cooperates with said air duct when said drawer is inserted through said housing into said lower display bin to admit refrigerated air into said drawer, a vertical baffle spaced from the rear of said drawer which cooperates with said door to form a continuation of said air duct, a partition to divide said continuation of said air duct into two air channels, a bafe to divert flow from one of said channels into the lower display bin, means to direct a portion of refrigerated air from the other of said air chanels into the remaining display bins, a baille pivotally mounted to said partition to control the volume of air diverted into each of said air channels.

KARL A. WEBER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,397,392 Amend Nov. 15, 1921 2,204,665 Crede June 18, 1940 2,511,375 Raskin June 13, 1950 2,528,916 Shreve Nov. 7, 1950 2,529,384 Greiling Nov. 7, 1950 

